Lamp shade



R. LEV-Y,

LAMP SHADE Filed May 18, 1925 2 Sheets-Sheet 1 Fig. 6"

Jnvenfor Robert- Levy til/w R. LEVY July 5, 1927. v 1,634,545

LAMP SHADE Filed May 18, 1925 2 Sheets-SheatZ Jnvnfor. Roberf LevyPatented July 5, 1927. 4

so s r ROBERT LEVY, 0 F

nine 8', 192's, Serial ad.

The 'arese'nt invention has for its cfljecta lamp-shade which,althoughstruction, allows to o'pe'n'and, close in case of'requiremeiit',toQ-Oncent'rate' the light rays on a. s'mall'place,

or to distribute themon'a' larger surface. The well known method, asused for umbrellas, cannot be used for the present ul'atechstays,necessary invention as the articforthe openlngand closingoi an umbrella,would throw bothersome shadows and do not'fgive' a nice" appearance to]ustments. are utilized the'cloth-cove'r at different ad- In the presentinvention stays as carriers for the cloth-cover which'are con'nectedwithan adjusting de- \'*ice,by "means of convenient arrangements,

an organ of some kind:

The invention 15 illustrated in the accompanying drawings,

in which Fig. 1 is-a form of construction of the shade, in section; F1g2 a second 1118601310111 form of construction, also a further forni ofconstruction.

Fi'g'; 4;"a' carriers areelastic.

form of construction in which the Fig. 5 a form of construction inwhichthe carriers are spring-controlled;

F ig'; '6 a further form of which the shade is controlle spiral sprlng.

construction in d by" a central Figs. 7 and S a still further form ofconstruction.

The stays a which serve to cover, for instance silk, are p of wire andoscillably moun (.1 arranged on the ring 6, the

carry the cloth referably made ted on an axle latter receiving itssupport by means of radial stays (not shown) rod g.

In the 1, the stays a are constructed which are carried by a stationaryform of construction shown in Fig.

as angle levers,

the shorter arms a of which, are led, by

means of thin strings cl, to having a clamping screw 7.

a guide ring 6 After unscrewing the clamping screw 7' the guide ring 6can be moved along the stationary bar g. IV hen pulling the ring 6downwards, the

levers aswing outwards aro of ring 6 so that the shade cloth-coveringlights a larger und the axle 0 opens and the surface than if 3mm,claimant Shani; 30564; and iiieniiiiy"Nbveinbr m; 15241- one'would'leave'thering 'e, after unscrewing of thescrew' f, slide'upward's" underthe weight'of the"levers"a whicliwould auto' matically fall into theposition showfnifidot ted lines. The stays a, ahd consequently the wholeshade, can'be adjusted linj any intermediate pos'ition'by meansof'thescrew f. In theform' of constr'uction'shown in Fig. l a heavychai'nor'like ulling organ must be provided for every angle: lever @5 0.

In "the form' of c'onstru'ction shown in Fig; 2 the 'provisioflof heavychain's'or' theTlike is not necessary as thes'hort arms a ofthe anglelevers'a; a are conne ted by means of a small chains 'h to a specialring'z'which is fixed to the lower endsof' the small chains ,IL- and inthis mannercommunicates with the angle levers a," 4v; The ring 2" can beconnected with the adjusting-- device e,-' 7' through tlie'intermedialyof a conical glass shade 7a. This glass-shade made 1 of milkg'lass ortransparent material, can be" replaced by two strings. i a

In the form of construction shown inFi g. 3 no" angleleversare' used butthe-icorrespontling bent levers a, are 'osci-llably mounted on the axlec of ring b and rest' with their" free ends on the'rim-of ring vThering'i can be lifted with the aid of the translucent shade ktobringthezlamp shade from the iositio'rishownih full lines into theposition shownimdotted. line,"inawhich casethe levers 1 a willfollow1the movementand-iconic into the desired strettihedoriopnpos-i'tion, Also in this form of construction-anyEinter nediate*position ca-r-i'ybiradjusted by means of thetclam pingzdevice s In'the' form" of construction shown in-Fig. l, levers a of elastic materialare used in the upper ends of which are fixed on the ring I). Thisfixation can for instance be done in such a manner that the levers a areshifted or clamped into convenient clamps b. The levers or stays can bemade of steel, whalebone or other bending or elastic material. Inproximity of the free ends of the levers a pull-strings (Z are fixedwhich are conducted through eyes 9 of a stationary plate or ring Thefree ends of the pull strings (Z are fixed on adisk Z which carries aratchet pawl Z. This ratchet pawl can engage with the teeth 9 providedin the stationary bar 9. The ratchet pawl is spring'controlled and withthe aid of a chain m the locking mechanism of the pawl can be releasedat any time. The ratchet being released, the disk Z can be pulled downby means of the chain 0 to bring the stays a into the position shown indotted line and consequently close the shade more or less. In releasingthe ratchet pawl Z through the intermediary of the chain m, the elasticstays will automatically go back to their normal position, which isshown on the drawings in full lines, and the shade is opened. The diskZ, with ratchet pawl, can be operated in any intermediate position sothat the shade is locked as required.

Instead of making the stays from elastic material, they can be made, asshown in Fig. 5, from rigid material and controlled by springs n whichhave the tendency to bring the stays a into the open position.

The adjusting device is in this case constructed in the same manner asin Fig. 4.

In the form of construction shown in Fig. 6 the springs 01 do notdirectly come in touch with the levers a but control a disk p whichcommunicates by articulations with the levers a. The chains m and 0 havein this case the same functions as in the form of construction shown inFig. 4. Through the chain m the ratchet Z is released and by pullingchain 0 downwards, against the action o'l the spring r, the shade ismore or less closed, opening automatically when releasing the ratchet.

Fig. 7 shows a form of construction in which, instead of swinginglevers, wire bows a are used which can be adjusted, quite as the leversa, with the aid of a pulling de vice. The bows are covered with atransparent material, for instance galalith-glass, galalith, or thelike, and between the several bows, cloth, for instance silk, isstretched by means of which a very effective light is produced. Thiseffective light can be produced on a smaller or larger surface.

I claim 1. A lampshade, comprising in combina. tion a stationary ring,cloth carrying levers mounted to oscillate on said ring and adapted tonormally fall downwardly by their own weight means comprising a ringoperating to oscillate said levers and adjust the same in stretchedposition, and spring members operatingsaid means.

2. A lamp shade, comprising in combination a stationary ring, clothcarrying levers mounted to oscillate. on said ring and adapted tonormally fall downwardly by their own weight means operating tooscillate said levers and adjust the same in stretched position, springmembers operating said means, and a pawl and ratchet to adjust the meansin any desired position.

A lamp shade, comprising in combination a stationary ring, clothcarrying levers mounted to oscillate on said ring and adapted tonormally fall downwardly by their own weight means comprising a ringoperating to oscillate said levers and adjust the same in stretchedposition, spring members operating said ring, a pawl and ratchettoadjust the ring in any desired position, and a guide bar provided withteeth to receive the said pawl.

4-. A lamp shade, comprising in combination a stationary ring, clothcarrying bowshaped levers mounted to oscillate on said ring and adaptedvto normally fall downwardly by their own weight means comprising a ringoperating to oscillate said levers and adjust the same in stretchedposition, and spring members operating said means.

5. A lamp shade, comprising in combination a stationary ring, clothcarrying bowshaped levers mounted to oscillate on said ring and adaptedto normally fall downwardly by their own weight, means compris-.

mg a ring operating to oscillate said levers and adjust the same instretched position, spring members operating said means, and atransparent material covering said bows.

In testimony whereof I aflix my signa ture.

ROBERT LEVY.

